Harvard MP II
Mini-Peristaltic Pump
User’s Manual
MP II Mini-Peristaltic Pump MA1 70-2027
Publication 5392-001-REV-A
Publication 5392-001-REV-A
WEEE/RoHS Compliance Statement
EU Directives WEEE and RoHS
To Our Valued Customers:
We are committed to being a good corporate citizen. As part of that commitment,
we strive to maintain an environmentally conscious manufacturing operation. The
European Union (EU) has enacted two Directives, the first on product recycling
(Waste Electrical and Electronic Equipment, WEEE) and the second limiting the use
of certain substances (Restriction on the use of Hazardous Substances, RoHS).
Over time, these Directives will be implemented in the national laws of each EU
Member State.
Once the final national regulations have been put into place, recycling will be offered
for our products which are within the scope of the WEEE Directive. Products falling
under the scope of the WEEE Directive available for sale after August 13, 2005 will
be identified with a “wheelie bin” symbol.
Two Categories of products covered by the WEEE Directive are currently exempt
fr
om the RoHS Directive – Category 8, medical devices (with the exception of
implanted or infected products) and Category 9, monitoring and control instruments.
Most of our products fall into either Category 8 or 9 and are currently exempt from
the RoHS Directive. We will continue to monitor the application of the RoHS
Directive to its products and will comply with any changes as they apply.
t Dispose Pr
• Do N
o
• Special Collection/Disposal Required
oduct wit
h Municipal Waste
Table of Contents
1
SUBJECT PAGE NO.
General Information - Warranty and Repairs......2
Specifications ........................................................3
Operating Instructions ......................................4–6
How to Load the Tubing ....................................7–8
Other Information ..................................................8
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General Information
2
- No User Serviceable Parts Inside
Serial Numbers
All inquires concerning our product should refer to the serial number of the
unit.The Serial number is located on the side of the chassis.
Calibrations
This produt does not require calibration.
Warranty
Harvard Apparatus warranties this instrument for a period of two years from
date of purchase.At its option, Harvard Apparatus will repair or replace the
unit if it is found to be defective as to workmanship or material.
This warranty does not extend to damage resulting from misuse,neglect or
abuse, normal wear and tear, or accident.
This warranty extends only to the original customer purchaser.
IN NO EVENT SHALL HARVARD APPARATUS BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES.
exclusion or limitation of incidental or consequential damages so the above
limitation or exclusion may not apply to you.
WARRANTIES OF MERCHANTABILITY, OR FITNESS FOR A PARTICULAR USE, OR OF ANY OTHER NATURE.
itation on an implied warranty,so the above limitation may not apply to you.
H a r v a r d A p p a r a t u s M P I I M i n i - P e r i s t a l t i c P u m p
If a defect arises within the two-year warranty period, promptly contact
arvard A
H
01746-1388 using our U.S. only toll free number 1-800-272-2775 or dial
(508) 893-8999. Goods will not be accepted for return unless an RMA
(returned materials authorization) number has been issued by our customer
service department. The customer is responsible for shipping charges.
Please allow a reasonable period of time for completion of repairs, replacement and return. If the unit is replaced,the replacement unit is covered only
for the remainder of the original warranty period dating from the purchase
of the original device.
pparatus, Inc. 84 October Hill Road, Holliston, Massachusetts
Some states do not allow
THERE ARE NO IMPLIED
Some states do not allow this lim-
This warranty gives you specific rights, and you may also have other rights
which vary from state to state.
Repair Facilities and Parts
Harvard Apparatus stocks replacement and repair parts. When ordering,
please describe parts as completely as possible, preferably using our part
umber
n
econditioning service.
r
CAUTION
This pump is not registered with the FDA
and is not f
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If practical, enclose a sample or drawing. We offer a complete
s.
linical use on human patients.
or c
Specifications
3
Specifications
Output Pressure Minimum 20 p.s.i. (1.38 bars)
Power 115/230 VAC, 50/60 Hz, universal power supply, 10 watts
Power Supply 12 VDC 800 mA 2.5 mm connector,
with detachable IEC 320 line cord with ground.
Dimensions, H x W x D 189 x 114 x 105 cm (3.5 x 4.5 x 4 in)
Weight 0.96 kg (2.1 lb)
Tubing ID 1/16 inch
Flow Rates 0.8 to 12.25 ml/min per tube
Catalog No. Product
70-2027 Harvard MPII: Mini-Peristaltic Pump with universal power supply
55-4148 Pump Head Tubing Pieces. These silicone pump head tubing pieces
have connectors on each end for 1/16 in ID tubing, pkg. of 10
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Operating Instructions
4
Description
The Harvard MPII Mini-Peristaltic pump takes only one size of tubing, 1.6
mm ID x 3.2 mm OD (1/16 x 1/8 in).It can be used with either a single tube
or two tubes simultaneously.
Two front panel controls provide flow rates from approximately 0.8 to
12.25 ml/min. The control knob provides variable adjustment from 0 to
100% of the selected flow rate range.The second control is a two position
toggle switch marked x1,x2 which selects low or high flow rates, see table
to right.
The easy-loading four-roller pump head is on top of the stout metal box.The
back of the pump head effortlessly rotates into an ‘open’position and either
one or two tubes can be dropped into slots. The loaded section simply
rotates back against spring loaded jaws and locks into place.The tubing is
automatically in proper wiping contact with the pump head rollers. Each
Pump is provided with a 12.5 mm (0.5 in) rod clamp on the back so that
multiple pumps can be mounted vertically on a lattice rod.
Location Requirements for the MP II Mini-Peristaltic Pump
• A Sturdy, level, clean and dry surface
• Minimum of one inch (2 cm) clearance around the pump
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• Adequate power supply
• Room temperature 4°C to 40°C (40°F to 104°F)
• Relative humidity 20% to 80%
• A well ventilated room
Power Requirements
The MP II Mini Peristaltic Pump requires 12 VDC at 800 mA. The power
receptacle has a 2.5 mm center pin, which is the positive polarity. One (1)
universal power supply is provided for 120/230 VAC operation.Plug the output connector into the rear receptacle of the Mini Peristaltic pump.The universal power transformer automatically adjusts the supply voltage. The
North American plug can be replaced with a similar power cord with an IEC
320 plug. Observe the color coding of the international line cord.
Brown – High
Neutral
Blue
Green – Ground (earth)
Tubing
The pump is designed f
onl
.
.D
O
connectors fitted. If other tubing materials are used, please verify pump
flow rates. Excessively hard tubing may overload the pump motor and
cause if to
Publication 5392-001-REV-A
–
or silicone rubber tubing 1/16 inch I.D. x 1/8 inch
.The pump is supplied with two short lengths of tubing with end
y
‘stall’.
Operating Instructions (Contd)
5
Loading the Pump
A hinged black plastic compression clamp holds the tubing against the
rollers. Release the clamp by pushing it and rotating it away from the
rollers. Insert one or two tube segments and close the clamp tightly until it
snaps into position. See page 6 for more detailed instructions and diagrams.
Setting the Direction
A toggle switch has been provided for clockwise or counter clockwise
rotation.
Adjusting the Flow Rate
Use the speed range switch x1, x2, and the main speed knob to adjust
flow rate.
FFllooww RRaattee ppeerr ttuubbee,, mmll//mmiinn.
(Below values are for a single tube. Using two tubes in parallel will double
the flow rate.Values are approximate.)
MPII Flow Rates in ml/min
Switch With One Tube With Two Tubes
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Setting Min. Max. Min. Max.
x1 0.8 ml/min 7.00 ml/min 1.6 ml/min 14.00 ml/min
x2 1.5 ml/min 12.25 ml/min 3.0 ml/min 24.50 ml/min
Use a stop watch and measured container to precisely determine the
actual flow rate.
.
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Operating Instructions (Contd)
6
Maintenance
No special maintenance is required other than keeping the pump clean and
dry.The pump has a cooling fan.Air enters the pump at the bottom and exits
through the top rear. It is important that the air flow not be obstructed.
During normal operation, the pump may get warm from the precision stepper motor.This condition is normal.
Output Pressure
The pump will deliver minimum of 20 p.s.i.As with other peristaltic pumps,
an increase in fluid back pressure will cause the flow to decrease slightly.
Power Switch
The power switch is located on the rear of the pump.
Power
‘ON’
indicator
Speed Range x1
or x2
Forward or
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Reverse
Direction
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270° Knob
Minimum to
Maximum
How to Load the Tubing
7
MPII without Tubing:
The Mini Peristaltic pump is sold with one set of tubing segment.To load
the tubing, follow these simple instructions.
MPII Without Tubing
Tubing Block
Tubing
Pump Head
Holding
Pin
Step 1: Open Mechanism
With your thumb or finger, push the tubing block away from the holding
pin.Make sure you have enough clearance from the pump head to insert the
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tubing without obstruction.
Channel
Step 1: Push away the Tubing Block
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How to Load the Tubing (Contd)
8
Step 2:
Load the Tubing
Insert one or two
tubing segments
into the tubing
channel. A maximum of two tubes
can be used.
Step 3: Secure Mechanism
By using your thumb or finger, bring the tubing block to its original position.
The tubing is now properly inserted and has the proper built in tolerance.
Step 3: Secure Tubing
Block to the Locking Pin.
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Step 2: Load Tubing
Tubing
Segment
Holding Pin
Other Information
Fuse - Ther
Rod Clamp - A pole c
bor
la
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e is no user fuse used in this unit.
lamp has been provided for mounting onto a
ator
y lattice r
od.
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